9. Which of the following choices is a variable used in the expression 8a - 4?
A. 8
B. a
C. 4
D. 84
10. What is the variable used in 3m +2 = 5?
Am
B. 2
C.3
D. 5
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9. Which of the following choices is a variable used in the expression 8a - 4?
A. 8
B. a
C. 4
D. 84
10. What is the variable used in 3m +2 = 5?
Am
B. 2
C.3
D. 5
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Answer:
9. B
10. A
correct me if i am wrong
Answer:
9) B. a
10) A. m
Step-by-step explanation:
What is a variable?
A variable is a value that could possibly change within the context of a mathematical problem or experiment. Usually, we use a single letter to represent a variable. The letters x, y, and z are common symbols used as variables.
Examples
Choosing the Variables Used on the Expressions and Equation
9) Which of the following choices is a variable used in the expression 8a - 4?
A. 8
Is it a variable? – No, it is an integer.
B. a
Is it a variable? – Yes, it is.
C. 4
Is it a variable? – No, it is an integer.
D. 84
Is it a variable? – No, it is an integer and it is not included in the expression.
Answer: B
10) A. m
A. m
Is it a variable? – Yes, it is.
B. 2
Is it a variable? – No, it is an integer.
C. 3
Is it a variable? – No, it is an integer.
D. 5
Is it a variable? – No, it is an integer.
Answer: A
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